727 Hard to Roll backwards

One last follow up before I parking lot this concern until after the brakes are on.

With the driveshaft still in the transmission but out of the rear I took a 2ish foot long prybar in the u-joint area on the driveshaft and was able to turn the transmission both ways (still really stiff in one direction). There is some dragging type sounds from the trans in the hard "reverse" direction (think brake pads on a rotor) but it did turn both ways. I think the "metallic" sounds I had hear before was just the backlash in the rear or something between the tail shaft and tires coming together when I tried to move the tires in reverse on the 2-post lift.